Hach-Lange NISE sc - Manual (Page 36)

36
Troubleshooting
6.2 Warnings
I n the event of a sensor warning, all menus, relays and outputs continue to function as
normal but a warning symbol lights up.
Warnings may be used to activate a relay; users can set warning levels to define the
severity. Warnings are defined in
Table 3 .
Table 3 Warnings
Displayed warnings Cause Resolution
RFID DATA Cartridge faulty, read process failed
Replace cartridge, check probe
with test cartridge
NH4 mV RANGE! 1,2 Ammonium mV value is close to measuring range limit
Refer to 6.3.1 Troubleshooting
during operation, Page 37 .
K+ mV RANGE! 1,2 Potassium mV value is close to measuring range limit
NO3 mV RANGE! 1,3 Nitrate mV value is close to measurement range limit
Cl – mV RANGE! 1,3 Chloride mV value is close to measurement range limit
REF1 mV RANGE! 1st reference value is close to limit
REF2 mV RANGE! 2nd reference value is close to limit
TEMPERATURE Temperature is close to limit
CARTRIDGE OLD Sensor cartridge more than 1 year old Replace the sensor cartridge
NH4-N CONC HIGH 1,2 Ammonium concentration value exceeds measuring range
See 6.3.1 Troubleshooting during
operation, Page 37 .
NH4-N CONC LOW 1,2 Ammonium concentration value is below measuring range
NO3-N CONC HIGH 1,3 Nitrate concentration value exceeds measuring range
NO3-N CONC LOW 1,3 Nitrate concentration value is below measurement range
K+ KONZ HOCH 1,2 Potassium concentration value exceeds measuring range
K+ CONC LOW 1,2 Potassium concentration value is below measuring range
CL CONC HIGH 1,3 Chloride concentration value exceeds measuring range
CL CONC LOW 1,3 Chloride concentration value is below measurement range
AMMONIUM 1,2
Refer to 6.3.2 Troubleshooting
during calibration, Page 38 .
OFFSET Ammonium offset exceeds measurement range
SLOPE Ammonium slope exceeds measurement range
POTASSIUM 1,2
OFFSET Potassium offset exceeds measurement range
SLOPE Potassium slope is out of measuring range
NITRATE 1,3
OFFSET Nitrate offset is out of measurement range
SLOPE Nitrate slope is out of measurement range
CHLORIDE 1,3
OFFSET Chloride offset is out of measurement range
SLOPE Chloride slope is out of measurement range
1 Applies to AN-ISE sc
2 Applies to AISE sc
3 Applies to NISE sc